﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp4
{
    class Program
    {
        static void Main(string[] args)
        {
            Book book1 = new Book(1,"《欢歌犹在意微醺》",28.8);
            book1.BookInfo();

        }
    }
}
